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Effect of Deposition Parameters & Molybdenum Percentage on Nickel-Molybdenum Alloy Coatings

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Abstract:

The use of Potassium-phosphate baths for the alloy deposition of Nickel–Molybdenum is recently proved equally good as Sodium-citrate baths. The coatings so obtained from Potassium-phosphate baths were examined for atomic weight percentage of Molybdenum. The variation in weight percentage of Molybdenum was obtained by varying different plating parameters like - molar ratio, current density range, and potential range. The observed co-deposited Molybdenum Atomic percentage variation in alloy was investigated for grain size, porosity in structure and surface roughness. The results revel that Molybdenum Atomic percentage in the Nickel–Molybdenum alloy has effect on porosity and surface roughness. It was also found that root mean square value of surface roughness was not only affected by the Molybdenum Atomic percentage but also by potential at relaxation time (TOFF) potential.

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Periodical:

Advanced Materials Research (Volume 585)

Pages:

493-497

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.585.493

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Online since:

November 2012

Authors:

Joshi Kamlesh, Hassan Jayaraj Amarendra, Gajanan Prabhakar Chaudhari, Sameer Kumar Nath

Keywords:

Coating, Current Density, Molar Ratio, Porosity, Potential, Surface Roughness (SR)

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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